To be a cold worker, you must first understand drawings, that is, steel structure drawings, be familiar with skilled lofting and unfolding methods, use marking and molding equipment, and be able to cut and weld. Learn the knowledge of controlling welding deformation and master it skillfully.

I know flame correction and a little metalworking. As a cold worker who has just left the workshop, I want to see more, do more and ask more questions.

. The cold working procedure is 1. Expand and expand 2. Mark 3. Form 4. Lap welding. Welding 6. Shaping.